The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 29, 2002
Filed:
Mar. 29, 2001
Anders Tennby, Kungsbacka, SE;
Thomas Åberg, Göteborg, SE;
Bo Thornström, Harestad, SE;
Kenneth Henriksson, Mölndal, SE;
Roy Hansson, Mölndal, SE;
SCA Hygiene Products AB, Gothenburg, SE;
Abstract
The invention relates to a device and a method for producing a material laminate ( ) by fixing pieces of material ( ) at a given distance from one another on a first continuously advanced material web ( ). The invention is characterized in that the pieces of material ( ) are cut from a second continuous web ( ) in a first station ( ) and are conveyed via a transport device ( ) to the first web ( ), to which the piece of material ( ) is attached by means of ultrasonic welding over a limited attachment area ( ) on the pieces of material ( ), and the pieces of material ( ) are subsequently fixed to the material web ( ) by ultrasonic welding in a second station ( ). The second station comprises an ultrasonic horn ( ) at a fixed distance from a stay ( ) designed as a rotating drum with a patterned outer surface.